Replacement head for a toothbrush



FIG. 1 is a top, front, and left side perspective view of a replacement head for a toothbrush according to the new design;

FIG. 2 is a bottom, rear, right side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The dashed broken lines illustrate portions of the replacement head for a toothbrush that form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and form no part thereof. 

CLAIM The ornamental design for a replacement head for a toothbrush, as shown and described. 